Dust-collector.



G. J. & E. L. KNAPP.

DUST GOLLEDTOR.

APPLIGATION FILED rBB.2,1914.

1,106,101. Patented Aug.4,1914

Fig- 2,..

Fl -l- GEORGE J. KNAPP AND EDWARD L. KNAPP, OFIDAYTON, OHIO.

'DUST-COLLECTOR.

Speccation of Letters Patent.

Patented A110: 4, 1914.

Application tiled February 2, 1914. Serial No. 815,915.

T0 all whom it may concern Be it known that I, Geenen J. KNArr and EDWARD L. KNarr, citizens of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Dust-Collectors; and we do declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to a dust collector for furnaces, for preventing the scattering of ashes, dust, etc., arising when the feed and ash doors of heatingr furnaces are opened.

The device is applicable to furnaces for domestic use. It will be readily understood that the ashes, dust, ete., escaping when a furnace is stoked or cleaned accumulates throughout the premises.

Tn order to avoid this annoyance, our invention consists of a casing or hood which is readily attachable to the front of the furnace and incloses the front openings thereof, and a pipe connection which extends from the top thereof to the smoke flue at a point below the smoke pipe of the furnace.

Referring to the accompanying drawings which illustrate our invention, Figure 1 is a side elevation of a heating furnace showing our appliance attached thereto; Fig. Q is a front elevation of the same; Fig. 3 is a front elevation showing the hood door omitted when space is restricted; and Fig. 4 is a sectional view on the line a-c of Fig. 2.

ln the specification and drawings, similar reference characters indicate corresponding parts.

Referring in more specific terms to said drawings, 1 designates a common form of heating furnace. Uur improvements are adapted to be applied to this as well as other forms all of which have the usual smoke pipe 2 discharging into the flue 3 and provided with the usual feed-door 4 and ash door 5. Heating furnaces, as is well known, emit considerable dust, dirt, etc., when the ashes are removed or the feed door is opened for replenishing. The smoke, ashes, dust,

etc., is annoying owing to its tendency to scatter throughout the premises. To collect the same at the front openings of the furnace and to conduct it to the flue 3, we provide a specially constructed hood or casing which is appled to the front of the furnace. This hood or casing consists of side walls (3 which are extended to form a curved top or dome 7 which lies over the feed door 4, and a back 9 curved to conform to the contour of the upper front of the furnace. The edges of the side walls of said hood are secured to the furnace casing on opposite sides of the feed door, and owing to the top of the hood being of dome shape the edges of the sides which form said dome taper outwardly and join the upper inner wall 9 of the hood thus excluding the possibility of any escape of smoke or dust from the hood at points where the contact is made with the hood and the furnace casing. This back wall 9 terminates at its lower end above the feed door 4 so that access may be had thereto. The stationary front 8 terminates at its lower end a suitable distance above the feed door 4 to enable convenient access thereto. A Hap or door 10 is connected to said wall S by hinges 11 and is held in both its open and closed position by` a spring 12 attached to a side of the hood and to the door or [lap 10. The device is secured to the body of the furnace by a strap or band 13 extending therearound. The top of the hood or casing has an opening from which extends a pipe 14 connecting with the flue 3. It will be observed that the pipe 14 extends into the flue 3 below the point of entrance of the smoke pipe Q. This is a desirable feature. By connecting the outlet pipe from the hood below the pipe 2f, no interference is had with the elliciency of the furnace draft. lt will readily be seen that all dust, etc., arising from the (merations of the furnace will be collected in the hood and carried out through the flue 3.

Having described A dust collector for furnaces comprising a hood consisting of side walls which are extended upwardly to form a dome which lies above the feed door of the furnace, said hood being incloscd at the front and rear by walls which terminate above said feed dome and the latter of which conforms to the contour of the furnace casing above the 'feed door, said dome being provided with a central outlet in the top thereof, the edges of the side our invention, we claim.`

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Walls being` secured to the furnace Casingon In testimony Wliereo` We affix our signaopposlte sides of the feed door, and a pipe tures, in presence of two Witnesses.`

extending from the outlet smoke flue and GEORGE J. KNAPP.

joining the dust outlet of the hood, said pipe EDWARD L. KNAPP. 5 entering the smoke outlet flue at a point be- "Witnesses: v

low the smoke pipe of the furnace, substztn- MELLIE GALLOWAY,

tially as specified. MATTHEW SIEBLER.

u Copies of this patent may be obtained for ve cents each, by addressing; the Commissioner of miente,

Washington, D. 

